(USA) Principal, Software Engineer

Walmart's Marketplace Engineering team is seeking a Principal Software Engineer to lead the technical vision and architecture of their core platforms. This role is situated within the team responsible for enabling third-party sellers on walmart.com, managing the entire seller lifecycle, and delivering high-value insights.

As a Principal Engineer, you'll be at the forefront of defining and implementing the long-term backend architecture roadmap for systems handling 1M+ TPS. You'll establish service standards for microservices and event-driven systems, while acting as the technical authority across multiple teams. The role involves significant leadership responsibilities, including mentoring Staff and Senior Engineers, architecting core platform frameworks, and driving operational excellence.

The position offers an opportunity to work with cutting-edge technologies, including reactive systems, distributed consensus protocols, and real-time graph analytics. You'll be responsible for defining platform-level SLAs and partnering with Site Reliability Engineering to implement robust systems. The role also involves representing Walmart in industry forums and guiding R&D efforts in emerging technologies.

Walmart offers a comprehensive benefits package including competitive salary ($143,000-$286,000), performance bonuses, stock options, health benefits, 401(k) matching, and educational assistance. The position is based in Sunnyvale, CA, offering access to Silicon Valley's vibrant tech ecosystem while working for one of the world's largest retailers.

This role is ideal for a seasoned technical leader with 15+ years of experience who is passionate about large-scale distributed systems, has a proven track record of defining technology roadmaps, and excels at mentoring other engineers. The position requires deep expertise in microservices, event-driven architectures, and data-centric systems, combined with strong executive communication skills and the ability to drive innovation at scale.